23421563471 has 2 divisors, whose sum is σ = 23421563472. Its totient is φ = 23421563470.

The previous prime is 23421563419. The next prime is 23421563497. The reversal of 23421563471 is 17436512432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23421563471 - 2³⁰ = 22347821647 is a prime.

It is a super-3 number, since 3×23421563471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23421563411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710781735 + 11710781736.

It is an arithmetic number, because the mean of its divisors is an integer number (11710781736).

Almost surely, 2^23421563471 is an apocalyptic number.

23421563471 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421563471 is an equidigital number, since it uses as much as digits as its factorization.

23421563471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The spelling of 23421563471 in words is "twenty-three billion, four hundred twenty-one million, five hundred sixty-three thousand, four hundred seventy-one".